Improvement in bias-rules



I. H. WHITE. Bias-Rule.

No. 217,967. Patented July 29,1879.

Wzinesses: Inventor.- W I WQ W M 'm 4 the usual scale of measurement.

UNITED STATES PATENT OFFICE.

FREDERICK H. WHITE, OF MINNEAPOLIS, MINNESOTA.

IMPROVEMENT IN BIAS-RULES.

Specification forming part of Letters Patent No. 217,967, dated July 29,1879; application filed January 1879. I

To all whom it may concern:

Be it known that I, FREDERICK H. WHITE, of Minneapolis, Minnesota, haveinvented a new and useful Improvement in Bias-Rules for merchants andothers, of which the following is a clear, full, and exact description,reference being had to the accompanying drawings, making a part of thisspecification, in which Figure 1 represents my improved rule folded up.Fig. 2 represents it in position for use.

To enable others skilled in the art to make and use my invention, I willproceed to describe the exact manner in which I have carried it out.

My invention relates to that class of rules used by merchants andshop-keepers for the purpose of enabling them to cut silks and othergoods on the bias; and it consists in the construction and combinationof the parts hereinafter described and claimed.

In the drawings, A represents the base or hypotenuse of my improvedrule, provided with On each end of the base A is formed an inclinedshoulder, a, forming an angle of forty-five degrees at each point Hingedto the base A, at I) b, are the arms B B, which fold down when not inuse, as shown in Fig. 1, and when in use are unfolded, as shown in Fig.2, the two arms forming a right angle at their point of juncture O, andbeing supported in that position by the shoulders d (1. One or. both ofthe arms B B may be provided with the usual scale for measurement.

It is evident from the above description that any inerchants yard-stickmay be so constructed as to be readily converted into abiasrule whenneeded, andbe again folded into a

